TWM554910U - Mold for molding three-dimensional glass - Google Patents

Description

Molded stereo glass mold

The present invention relates to a molded three-dimensional glass mold, which belongs to the field of die-formed three-dimensional glass hot press forming technology, which can effectively avoid the qualitative change of the central portion of the three-dimensional glass after molding, and the curved portion of the middle portion of the molded glass due to high temperature softening or The wavy state causes a defect such as unevenness of the plane after the hot pressing.

According to the glass, because of its high light transmission characteristics, display devices (such as mobile phones, watches and other electronic products) are often selected as the outer casing of the window portion. It can be seen that the surface of the handheld electronic product is usually provided with a glass casing to protect the display module inside the product. At present, most of the glass casings are in the shape of a flat plate, so seams are formed on the upper surface of the electronic product. Furthermore, since the peripheral portion of the electronic product must retain a certain width of the mechanism portion for holding the flat glass, the top surface of the electronic product cannot be fully utilized. Therefore, three-dimensional or curved glass has gradually been applied to the glass casing of electronic products.

A flat glass housing is easier to manufacture, and a glass housing having a three-dimensional shape is relatively difficult to manufacture. At present, there are generally two methods for manufacturing a glass shell having a three-dimensional shape: the first one is to manufacture a plurality of flat glass units, and then form a glass shell having a three-dimensional shape by adhering the edges. The second type is: manufacturing a rectangular parallelepiped glass of a certain thickness, and then grinding it on the rectangular parallelepiped glass several times to form a three-dimensional shape having a plurality of sides. However, the above two methods Both are time consuming and labor intensive, and the production speed is very slow. In general, since the glass material is a flat plate, if a glass having a shape is to be produced, it is preferable to arrange a flat glass material between an upper mold and a lower mold, and then heat the upper mold. Pieces, lower molds and glass materials to soften the glass material. When the glass material is softened, the upper mold member and the lower mold member can be clamped, so that the upper mold member and the lower mold member together shape the shape of the glass material along a mold clamping direction, thereby producing a corresponding molded glass. . China Patent Publication No. M452174 "Molding Equipment for Molding Glass" (refer to the patent publication date of the announcement date of May 1, 2013), which comprises a female mold part, a first male mold part, and a second public A mold part, a support ram and a pressure bar. The first male mold member is disposed on the female mold member in an openable manner, and the second male mold member is disposed between the female mold member and the first male mold member. The support ejector is disposed on the female mold member, and the support ejector rod is used for pushing the second male mold member to support the second male mold member and the first male mold member A molded glass. The pressing rod is disposed on one side of the first male mold part, and the pressing rod is used for pressing down the first male mold part such that the first male mold part is opposite to the second male mold part The master mold member is moved to a clamping position to form the molded glass.

China Patent I404681 [refer to the patent announcement on August 11, 102] refers to: general curved glass is molded by means of molding. The traditional glass molding equipment includes upper and lower molds, and the material glass blank is placed. In the meantime, after the upper and lower molds and the material glass blanks are heated to the plasticizable critical temperature, the upper and lower molds pressurize the material glass blank to change its shape. After the temperature is lowered, the material glass blank is cooled even on the surface. It will be shaped into the preset shape of the upper and lower mold surfaces. It is worth noting that when the conventional glass molding device is applied to the profiled thin-shell curved glass mold, the central region of the thin glass material placed on the lower mold In the initial stage of mold clamping, the field will be in a state of a large area. Because the thinner glass material of the thinner material cannot withstand the weight of the upper mold, if the upper mold is in contact with the thin glass material before the plasticizing temperature, It will be easy to crush the thin glass material. The patent provides a method for molding a thin glass material, comprising: providing a plurality of supporting elements between an upper mold and a lower mold, wherein the upper mold and the lower mold are provided with corresponding at least one mold core and at least one mold cavity The thin plate material glass is placed on the lower mold, wherein the plastic component has a plasticity critical temperature greater than or equal to a plasticity critical temperature of the thin plate material glass; and heating is performed when a heating temperature does not reach the plasticity of the support members At the critical temperature, the upper mold is supported by the support members to form a space between the upper mold and the lower mold. When the heating temperature reaches the plasticizable critical temperature of the support members, the upper mold is applied. The pressure deforms the support members such that the mold forces the sheet material to be deformed toward the cavity to form the sheet material into a finished glass. Moreover, after the conventional mold glass is placed in the molding chamber, the two side edges of the mold glass contact the inner side wall surface of the molding chamber, and the central portion is suspended inside the molding cavity. When the upper mold and the lower mold are heated to mold the glass, the molding is performed. The middle portion of the glass will exhibit a curved or wavy state due to high temperature softening. After the mold and the lower mold are clamped, the arc or wavy region will be thermally pressed to produce unevenness of the plane. The subsequent process is leveled to affect the transparency of the molded glass. China Patent No. M546396 Glass Forming Equipment Patent [refer to the patent announcement on August 1, 106] is used for hot press forming a molded glass. The glass forming apparatus comprises: a first mold structure comprising a first a mold member; a second mold structure disposed adjacent to the first mold structure in a relatively movable manner, the second mold structure comprising: a second mold member having a receiving groove and a suction hole; a venting component disposed on the second mold member to seal the accommodating groove, the venting component for carrying the molded glass, and cooperating with the first The mold parts respectively press the opposite surfaces of the mold glass to generate hot press deformation; an air extraction module is disposed outside the second mold structure, and the accommodating groove and the gas permeable component are combined to form one of the venting holes The accommodating space is exhausted; and a heating module is configured to heat the first mold structure and the second mold structure.

The inner side surface of the molding cavity is contacted with the inner side wall surface of the molding cavity, and the central area is suspended inside the molding cavity. When the upper mold and the lower mold heat mold glass, the middle portion of the molded glass is bent due to high temperature softening. The curved or wavy state is missing, and this creation proposes a better mold structure, which makes the hot press forming of the molded three-dimensional glass product more perfect.

In view of the lack of conventional technology, the creator of this creation has been engaged in the design and manufacturing expertise of precision ceramics technology industrial products for many years. After continuous research and improvement, the research and development of this creation has been successful and made known to the world.

The reason is that the main purpose of the present invention is to provide a "molded three-dimensional glass mold", which mainly comprises an upper mold and a lower mold, the upper end surface of the upper mold and the lower end surface of the lower mold are opposite to the central portion of the heating surface of the central portion of the glass to be heat-pressed. Each of the upper layer has a space layer, and the upper end surface of the upper mold and the lower end surface of the lower mold have a heat source for contact heating, and the heat source has a gap with the central portion of the heating surface of the upper mold and the lower mold, and there is no gap at the peripheral edge. , the center of the upper mold and the lower mold and the peripheral edge have a time difference to reach the softening temperature. When the glass is hot pressed, the glass is first bent to reach the softening temperature of the glass, and then reaches the softening temperature of the glass at the central portion of the glass, so that after molding The central part of the three-dimensional glass has low heat accumulation and heat content, which can effectively avoid the quality change of the central portion of the three-dimensional glass after molding, and the intermediate portion of the molded glass is heated or bent in a curved or wavy state. Produces the effect of missing such as unevenness of the plane.

In the above mold, when the heat source is provided by the non-contact type of radiation heat from above and below the upper mold and the lower mold, the upper mold space layer is disposed in the middle of the upper mold and is provided with a long slot parallel to the glass to be hot pressed. By.

(1) ‧‧‧Upper mold

(10) ‧‧‧ upper end

(11) ‧‧‧ spatial layer

(12)‧‧‧through long slot

(2) ‧‧‧Mold

(20) ‧‧‧ lower end

(21) ‧‧‧ spatial layer

(3) ‧‧‧Pressed glass

(4) ‧‧‧heat source

(5) ‧‧‧Transfer tray

1 is a cross-sectional view of a mold assembly of the present embodiment; FIG. 2 is a front view of the mold of the present embodiment; FIG. 3 is a side view of the mold of the present embodiment; Example of a contact heat source; FIG. 5 is a cross-sectional view of another embodiment of the present invention; FIG. 6 is a front view of another embodiment of the present invention; FIG. 7 is a mold side of another embodiment of the present creation The cross-sectional view is shown; Figure 8 is a schematic diagram of the non-contact heat source of the present creation.

In order to achieve the above-mentioned technical means for the purpose of the present invention, an embodiment will be exemplified, and with reference to the following description, the reviewing committee can obtain a better understanding of the structure, features and effects achieved by the present reviewer.

This creation is aimed at the new design of the molded stereoscopic glass mold. Please refer to Figure 1-4, which mainly includes an upper mold (1) and a lower mold (2), an upper mold (1) upper end surface (10) and a lower mold. (2) The lower end surface (20) is provided with a space layer (11) (21) on the central portion of the heating surface of the central portion of the glass to be heat-pressed (3), and the upper end surface (10) and the lower mold of the upper mold (1) (2) The lower end surface (20) has a heat source (4) for contact heating, and the central portion of the heat receiving surface of the heat source (4) and the upper mold (1) and the lower mold (2) borrows a space layer (11) (21) There is a gap, and there is no gap at the periphery, so that the center and the peripheral edge of the upper mold (1) and the lower mold (2) have a time difference of reaching the softening temperature. When the glass is hot pressed, the glass is firstly extended by the portion to be bent. The softening temperature of the glass reaches the softening temperature of the glass at the central portion of the glass, so that the heat accumulation and heat content in the central portion of the formed three-dimensional glass are low, so that the central portion of the three-dimensional glass after molding can be effectively prevented from being qualitatively changed, and the middle of the molded glass is formed. The region has a curved or wavy state due to high temperature softening, which causes a loss of planar unevenness and the like after heat pressing.

Referring to Figures 5-8, the mold of the present invention is provided when the heat source (4) is provided by the non-contact type of radiation above and below the upper mold (1) and the lower mold (2). On the transfer tray (5), the upper mold (1) space layer (11) is disposed between the upper mold (1) and the long slot (12) parallel to the glass (3) to be heat-pressed.

Furthermore, the creation mold is made of graphite material, which has high hardness, good electrical conductivity, radiation resistance, corrosion resistance, good thermal conductivity, low cost, and high temperature resistance. The graphite material has opposite properties to the temperature rise of the metal material. The higher the temperature, the harder the graphite is, so that the graphite does not have the problem of deformation. Therefore, the three-dimensional glass hot press forming mold is made of graphite material, and the degree of precision can be ensured to the utmost.

In summary, the “Molded Stereoscopic Glass Mould” disclosed in this creation has never been seen in the publications published at home and abroad. It has a novel patent requirement, and this creation can eliminate the lack of customary technology. And to achieve the design purpose, has also fully complied with the patent requirements, 提出 apply in accordance with the law, I would like to ask your review board to review, and give the patent in this case, really feel good.

However, the above is only one of the preferred embodiments of this creation, and is not intended to limit the scope of this creation. For those skilled in the art, the equivalent structural changes made by this creation specification and the scope of patent application are used. It should be included in the scope of this creation patent.

(1) ‧‧‧Upper mold

(10) ‧‧‧ upper end

(11) ‧‧‧ spatial layer

(2) ‧‧‧Mold

(20) ‧‧‧ lower end

(21) ‧‧‧ spatial layer

(3) ‧‧‧Pressed glass

Claims (2)

A molded stereoscopic glass mold mainly comprises an upper mold and a lower mold, wherein the upper mold and the lower mold are provided with a glass to be hot pressed, and the upper end surface of the upper mold and the lower end surface of the lower mold are opposite to the central portion of the heating surface of the central portion of the glass to be hot pressed Each of them is provided with a space layer, and further includes a heat source, and a contact heating is applied to the upper end surface of the upper mold and the lower end surface of the lower mold. The molded stereoscopic glass mold according to claim 1, wherein the heat source is heated by a non-contact type of radiation heat from upper and lower sides of the upper mold and the lower mold, wherein the upper mold space layer is in the middle of the upper mold. Set the through-long slot hole parallel to the hot-pressed glass.